![The Late Edwina Black](https://image.tmdb.org/t/p/w500/32el8iZFAPKPyx12ogXVVrmKt7O.jpg)
When a sickly Victorian woman dies suddenly, a postmortem reveals that her body contains a fatal dose of arsenic. Suspicion falls on her husband and her companion, who are lovers. Inspector Martin of Scotland Yard solves the mystery of her death... over a cup of tea.